GiBUU simulations show proton decay detection efficiency in water Cherenkov detectors matches previous estimates, while Fermi momentum choice significantly affects atmospheric neutrino background rates and is the leading systematic.
Microscopic Calculation of in-Medium Nucleon-Nucleon Cross Ssections
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abstract
We derive in-medium nucleon-nucleon (NN) cross sections in a microscopic model. Our calculations are based upon the Bonn NN potential and the Dirac-Brueckner approach for nuclear matter. We consider energies up to 300 MeV (in the laboratory frame) and densities up to twice nuclear matter density. Our results deviate substantially from cross section parametrizations that are commonly used in the nuclear medium.
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Understanding the impact of nuclear effects on proton decay searches with the GiBUU model
GiBUU simulations show proton decay detection efficiency in water Cherenkov detectors matches previous estimates, while Fermi momentum choice significantly affects atmospheric neutrino background rates and is the leading systematic.